We have the dual air in our 3100, we run the rear air most the time in less it over 90 degrees. Noise is a lot less and watching TV is not bad. Most the time if we run the front, it's on air at low speed.

Johnny We have the 3100 with 2 air units, love it, didn't add too much weight to unit, we have the single slide to keep the weight down. Also both units have the heaters and we were comfortable at 20 degrees in the winter, with just the heaters.

on the wall behind the driver seat, it will have a display showing the voltage of the house battery, and above the generator start panel. I know that it will cause noise on the AM radio in our unit. So in less I need something that need 110 vac while driving I leave it off.

Dose the noise go away with the radio on? Is the DVD on? You could be getting a RF feedback through the speakers. I get this whenever I forget to turn on the Computer with the powered speakers turn on and talk on the Ham Radio. With the computer on no problems. Try turning off the inverter and see if that would help. Let us know what you find out

Barry, You are right about the 100 Amps on the 50 Amp shore power, If I remember right I looked at the circuit for the Generator and is not hooked up to the second let of the 2 lines, That where the back Air is hooked up. I was going to switch them but did not get to it. So far I have not need to when dry camping. Most the time I look for a campgroung with power. Wife like that better.